Pulse-echo Response of Piezoceramic-Polymer 1-3 Type Composite Transducer for a Level Limit Switch Applications

Level Limit스위치용 1-3형 복합압전체 트랜스듀서의 펄스-에코응답특성

  • 최헌일 (동아대학교 전기전자컴퓨터공학부) ;
  • 손무헌 (동명대학 전기과) ;
  • 김홍근 (동아대학교 전기전자컴퓨터공학부) ;
  • 박경일 (동아대학교 전기전자컴퓨터공학부) ;
  • 사공건 (동아대학교 전기전자컴퓨터공학부)
  • Published : 2002.05.11

Abstract

In this study, the piezoelectric ceramics PZT powder was synthesized by the Wet-Dry combination method. Flexible 1-3 type composite specimens were fabricated with the piezoceramics PZT filler phase and Eccogel polymer matrix phase. This paper represents the pulse-echo response of the 1-3 type composite transducer to check it out to investigate a basic property regarding a level limit switch. The acoustic impedance of 1-3 type composite was improved than that of single phase PZT ceramics. The pulse-echo response of transducer fabricated with the self-made 1-3 type composites resonator was better than that of the solid PZT transducer.

Keywords